System.Text.Json Codegen Serialization Example

CramAtlasReader.cs

using System.IO;
using System.Text.Json;
using System.Text.Json.Serialization;

namespace SamuraiGunn2.Data
{
	[JsonSerializable(typeof(CramTextureAtlasData))]
	internal partial class CramTextureAtlasDataContext : JsonSerializerContext
	{
	}

	public static class CramAtlasReader
	{
		static JsonSerializerOptions options = new JsonSerializerOptions
		{
			PropertyNameCaseInsensitive = true
		};

		static CramTextureAtlasDataContext context = new CramTextureAtlasDataContext(options);

		public static TexturePage ReadTextureAtlas(string path)
		{
			var data = (CramTextureAtlasData) JsonSerializer.Deserialize(File.ReadAllText(path), typeof(CramTextureAtlasData), context);
			return new TexturePage(new CramTextureAtlasFile(new FileInfo(path), data));
		}
	}
}

CramTextureAtlasData.cs

using System.Collections.Generic;
using System.IO;

namespace SamuraiGunn2.Data
{
public struct CramTextureAtlasFile
	{
		public FileInfo File { get; }
		public CramTextureAtlasData Data { get; }

		public CramTextureAtlasFile(FileInfo file, CramTextureAtlasData data)
		{
			File = file;
			Data = data;
		}
	}

	public struct CramTextureAtlasData
	{
		// these are the fields generated by Cram
		public string Name { get; set; }
		public int Width { get; set; }
		public int Height { get; set; }
		public CramTextureAtlasImageData[] Images { get; set; }

		// some extra data, just for us
		public Dictionary<string, CramTextureAtlasAnimationData> Animations { get; set; }
	}

    public struct CramTextureAtlasImageData
    {
		public string Name { get; set; }
		public int X { get; set; }
		public int Y { get; set; }
		public int W { get; set; }
		public int H { get; set; }
		public int TrimOffsetX { get; set; }
		public int TrimOffsetY { get; set; }
		public int UntrimmedWidth { get; set; }
		public int UntrimmedHeight { get; set; }
    }

	public struct CramTextureAtlasAnimationData
	{
		public string[] Frames { get; set; }
		public int FrameRate { get; set; }
		public int XOrigin { get; set; }
		public int YOrigin { get; set; }
	}
}